Fuel cells have been developed that can generate a large amount of energy. for example, a hydrogen fuel cell works by combining hydrogen and oxygen gas to produce water and electrical energy. if a fuel cell can generate 10.0 kilowatts of power and the current is 15.8 amps, what is the voltage of the electricity? a. 0.63 volts b. 158volts c. 633 volts d. 158,000 volts e. 5.8 volts

If you touch a hot light bulb and get burned, that is an example of a. radiation b. convection c. conduction

Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong chain